jun imamura
Library for Waveshare epd1in54b (1.54 inch ePaper black/red)
e-Paper Module
Description
Waveshare 1.54 e-paper module imported from offiicial code https://www.waveshare.com/wiki/1.54inch_e-Paper_Module_(B) Codes are referenced from official Arduino code and Raspberry pi code.
SPI is used for communication between ePaper module and mbed.
Following shapes can be used:
- primitive shape (square, circle, line)
- font (variable sizes)
Pull request are appreciated (Note that the original code is copyrighted by (C) Waveshare )
Example Output
Display output with example code will be like following image:
Example Code
include the mbed library with this snippet
#include "mbed.h"
#include "epd1in54b.h"
// Control
PinName rst;
PinName dc;
PinName busy;
// SPI communication
PinName mosi;
PinName miso;
PinName sclk;
PinName cs;
DigitalOut myled(LED1);
unsigned char frame_black[EPD_HEIGHT*EPD_WIDTH/8];
unsigned char frame_red[EPD_HEIGHT*EPD_WIDTH/8];
int main() {
mosi = p5;
miso = p6;
sclk = p7;
cs = p8;
rst = p9;
dc = p10;
busy = p11;
memset(frame_black, 0xFF, sizeof(unsigned char)*EPD_HEIGHT*EPD_WIDTH/8);
memset(frame_red, 0xFF, sizeof(unsigned char)*EPD_HEIGHT*EPD_WIDTH/8);
Epd epd = Epd(mosi, miso, sclk, cs, dc, rst, busy);
if (epd.Init() != 0){
return -1;
}
/* Draw something to the frame buffer */
// For simplicity, the arguments are explicit numerical coordinates
epd.DrawRectangle(frame_black, 10, 60, 50, 110, COLORED);
epd.DrawLine(frame_black, 10, 60, 50, 110, COLORED);
epd.DrawLine(frame_black, 50, 60, 10, 110, COLORED);
epd.DrawCircle(frame_black, 120, 80, 30, COLORED);
epd.DrawFilledRectangle(frame_red, 10, 130, 50, 180, COLORED);
epd.DrawFilledRectangle(frame_red, 0, 6, 200, 26, COLORED);
epd.DrawFilledCircle(frame_red, 120, 150, 30, COLORED);
/*Write strings to the buffer */
epd.DrawStringAt(frame_black, 30, 30, "e-Paper Demo", &Font16, COLORED);
epd.DrawStringAt(frame_red, 28, 10, "Hello world!", &Font16, UNCOLORED);
// display images
epd.DisplayFrame(frame_black, frame_red);
//epd.DisplayFrame(IMAGE_BLACK, IMAGE_RED);
epd.Sleep();
while(1) {
myled = 1;
wait(0.5);
myled = 0;
wait(0.5);
}
}
epd1in54b.h
- Committer:
- imachooon
- Date:
- 2018-02-11
- Revision:
- 0:cba3c1061231
File content as of revision 0:cba3c1061231:
/**
* @filename : epd1in54b.h
* @brief : Header file for e-paper display library epd1in54b.cpp
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare August 10 2017
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documnetation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef EPD1IN54B_H
#define EPD1IN54B_H
#include "epdif.h"
#include "fonts.h"
#define LOW 0
#define HIGH 1
// Display resolution
#define EPD_WIDTH 200
#define EPD_HEIGHT 200
#define COLORED 1
#define UNCOLORED 0
// EPD1IN54B commands
#define PANEL_SETTING 0x00
#define POWER_SETTING 0x01
#define POWER_OFF 0x02
#define POWER_OFF_SEQUENCE_SETTING 0x03
#define POWER_ON 0x04
#define POWER_ON_MEASURE 0x05
#define BOOSTER_SOFT_START 0x06
#define DEEP_SLEEP 0x07
#define DATA_START_TRANSMISSION_1 0x10
#define DATA_STOP 0x11
#define DISPLAY_REFRESH 0x12
#define DATA_START_TRANSMISSION_2 0x13
#define PLL_CONTROL 0x30
#define TEMPERATURE_SENSOR_COMMAND 0x40
#define TEMPERATURE_SENSOR_CALIBRATION 0x41
#define TEMPERATURE_SENSOR_WRITE 0x42
#define TEMPERATURE_SENSOR_READ 0x43
#define VCOM_AND_DATA_INTERVAL_SETTING 0x50
#define LOW_POWER_DETECTION 0x51
#define TCON_SETTING 0x60
#define TCON_RESOLUTION 0x61
#define SOURCE_AND_GATE_START_SETTING 0x62
#define GET_STATUS 0x71
#define AUTO_MEASURE_VCOM 0x80
#define VCOM_VALUE 0x81
#define VCM_DC_SETTING_REGISTER 0x82
#define PROGRAM_MODE 0xA0
#define ACTIVE_PROGRAM 0xA1
#define READ_OTP_DATA 0xA2
// Display orientation
#define ROTATE_0 0
#define ROTATE_90 1
#define ROTATE_180 2
#define ROTATE_270 3
extern const unsigned char lut_vcom0[];
extern const unsigned char lut_vcom1[];
extern const unsigned char lut_w[];
extern const unsigned char lut_b[];
extern const unsigned char lut_g1[];
extern const unsigned char lut_g2[];
extern const unsigned char lut_red0[];
extern const unsigned char lut_red1[];
class Epd : EpdIf {
public:
unsigned long width;
unsigned long height;
unsigned int rotate;
Epd(PinName mosi,
PinName miso,
PinName sclk,
PinName cs,
PinName dc,
PinName rst,
PinName busy
);
~Epd();
int Init(void);
void SendCommand(unsigned char command);
void SendData(unsigned char data);
void WaitUntilIdle(void);
void Reset(void);
void SetLutBw(void);
void SetLutRed(void);
void DisplayFrame(const unsigned char* frame_buffer_black, const unsigned char* frame_buffer_red);
void Sleep(void);
void SetRotate(int rotate);
void SetPixel(unsigned char *frame_buffer, int x, int y, int colored);
void SetAbsolutePixel(unsigned char *frame_buffer, int x, int y, int colored);
void DrawLine(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored);
void DrawHorizontalLine(unsigned char *frame_buffer, int x, int y, int width, int colored);
void DrawVerticalLine(unsigned char *frame_buffer, int x, int y, int height, int colored);
void DrawRectangle(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored);
void DrawFilledRectangle(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored);
void DrawCircle(unsigned char *frame_buffer, int x, int y, int radius, int colored);
void DrawFilledCircle(unsigned char *frame_buffer, int x, int y, int radius, int colored);
void DrawCharAt(unsigned char *frame_buffer, int x, int y, char ascii_char, sFONT* font, int colored);
void DrawStringAt(unsigned char *frame_buffer, int x, int y, const char* text, sFONT* font, int colored);
};
#endif /* EPD1IN54B_H */
/* END OF FILE */